Nineteen people have been killed and about 50 injured in a suspected terror attack at Manchester Arena. The blast happened at about 22:35 BST on Monday following a pop concert by the US singer Ariana Grande. The cause is unknown but PM Theresa May said her thoughts were with those affected by “what is being treated by the police as an appalling terrorist attack”. British Transport Police said the explosion was in the arena’s foyer. Greater Manchester Police has established an emergency telephone number in response to the attack. It is: 0161 856 9400. The prime minister has suspended her general election campaigning and will chair a meeting of the government’s emergency Cobra committee later, in response to the attack.

Mrs May said: “We are working to establish the full details” of what had happened in Manchester. “All our thoughts are with the victims and the families of those who have been affected,” Mrs May said. BBC Home Affairs Correspondent Daniel Sandford said senior counter-terrorism officers were assembling in London and liaising with the Home Office. Unconfirmed reports from two unnamed US officials suggested the attack was carried out by a suicide bomber. The BBC’s Tim Ashburner, who is at the scene, spoke to some volunteer paramedics who treated the injured for “shrapnel-like injuries”.

Manchester: Nineteen people have been killed in a suspected terrorist attack during a pop concert by US star Ariana Grande in the northwest English city of Manchester, police said Tuesday. There were scenes of panic as Grande’s audience of youthful fans fled the 21,000-capacity venue after what eyewitnesses described as a “huge bomb-like bang” in the foyer area at the end of the concert. A fleet of ambulances was seen rushing to the venue and bomb disposal teams were dispatched soon after, as city residents opened up their doors to stranded concert-goers after train services were shut down. “So far 19 people have been confirmed dead, with around 50 others injured. This is currently being treated as a terrorist incident until police know otherwise,” police said in a statement.

British Prime Minister Theresa May condemned the “appalling terrorist attack”. “All our thoughts are with the victims and the families of those who have been affected,” she said in a statement. The first unconfirmed reports of an explosion emerged shortly after 2145 GMT on Monday. Gary Walker from Leeds told BBC Radio 5 Live he was hit by shrapnel in his foot and his wife sustained a stomach wound as they waited for their daughters to come out of the concert. “We heard the last song go and then suddenly there was a massive flash and then a bang and smoke,” he said. Manchester Arena said the incident “took place outside the venue in a public space”.

‘I saw bodies lying on the ground’

Andy Holey, who had gone to Manchester Arena to pick up his wife and daughter who had been at the concert, told BBC: “As I was waiting, an explosion went off and it threw me about 30 feet from one set of doors to the other set of doors.

“When I got up I saw bodies lying on the ground. My first thought was to go into the arena to try to find my family.

“When I couldn’t find them, I went outside with the police and fire and looked through some of the bodies to try and find my wife and daughter.”

Mr Holey told BBC that he did find his family and they were fine.

“It was definitely an explosion and it was some force. It happened near the box office at the entrance to the Arena.”

LONDON — Manchester police say they are working with national police, intel agencies to investigate concert explosion. Copyright 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

At least 19 people have died and dozens injured after “an appalling terrorist attack” at Manchester Arena. Downing Street have said an emergency Cobra meeting will take place at 9am on Tuesday. Both the Conservatives and the Liberal Democrats have suspended election campaigning in respect of the victims.

Here’s everything we know so far:

Police said around 50 people were injured and taken to six hospitals around the city

North West Ambulance Service said they had taken 59 casualties to various hospitals and treated a number of walking wounded at the scene

The blast struck the Manchester Arena at the conclusion of a performance by US singer Ariana Grande

Manchester Arena said the explosion happened outside the venue, as people began leaving the building

Greater Manchester Police said the incident took place at 10.33pm and approach roads were closed

They said the blast is being treated as “a terrorist incident”

Manchester Victoria station was evacuated and all trains cancelled

A “controlled explosion” took place shortly after 1.30am at the Cathedral Gardens area near Manchester Arena

An emergency hotline has been set up by Greater Manchester Police for concerned friends and relatives: 0161 8569400.

NEW YORK (WABC) — The NYPD says it is monitoring the events in Manchester, England and is stepping up security and patrols as a precaution in New York City. Nassau Police released a statement:

Nassau County Executive Edward P. Mangano and Acting Commissioner of Police Thomas C. Krumpter express their heartfelt prayers and condolences to the victims and families of tonight’s explosion at the Manchester Arena in England.Although there are no known imminent threats to Nassau County, police are monitoring this explosion along with federal, state, and local authorities. The Nassau County Police Department is taking all steps necessary to ensure the safety of the public and its Police Officers. We will be intensifying patrols at all areas of larger public gatherings.

If you see something, say something. If you hear something, say something.

Immediate threats should be called into 911 and tips can be called into Crime Stoppers at 1-800-244-TIPS.

At an Ariana Grande concert in Manchester, England, an explosion has killed 19 people, and 50 more have been seriously wounded. At this time, Manchester police are investigating the explosion, and say that until they get information that refutes it, that they are calling it a terrorist incident. Attendees of the Ariana Grande concert at the Manchester Arena say that the concert was coming to an end at about 10:30 p.m. when they heard a loud boom. Police confirm that they believe the main explosion happened in the foyer or entrance of the arena, and not in the main hall.

England has had its share of attacks and in the last six months when a man accelerated into a crowd of people outside of parliament in London, tourists were trapped on the London Eye in Westminster watching the events unfold below. Police said that until things were safe below, people needed to stay put where they were, and that is what Manchester police are saying now, and they are also urging people not to come down to the Manchester Arena until further notice.

Police said they believe a suicide bomber may have been responsible for the deadly incident in Manchester that left at least 19 people, according to US officials reportedly briefed on what happened. More than 50 people were also injured in the incident that took place at the conclusion of a concert by US singer, Ariana Grande, and which police said they were treating it as a suspected terrorist attack. Police carried out a controlled explosion on a suspect device several hours after the blast but subsequently revealed it had been a harmless bag. Prime Minister Theresa May paid tribute to the victims and families of those involved in “what is being treated by the police as an appalling terrorist attack”.

If confirmed as a terrorism incident, it would be the deadliest attack in Britain by militants since four young British Muslims killed 52 people in suicide bombings on London’s transport system in July 2005. Reuters said US officials had been told police in Manchester suspected a suicide bomber carried out the attack. Police said they responded to reports of an explosion shortly after 10.35pm at the arena, which has a capacity for 21,000 people, and where the US singer had been performing to an audience that included many children.